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178 commits this week Mar 27, 2026 - Apr 03, 2026
wcatz
wcatz · · dingo
fix(chainselection): skip peers whose tip is far behind best known 
During catch-up, the chain selector could switch to a peer whose tip
was thousands of blocks behind the best known peer. This caused
pipeline stalls and dropped rollbacks that cost minutes of sync time
per cycle.

Add a check in isPeerSelectableLocked that skips peers whose tip is
more than K (securityParam) blocks behind the highest known peer tip.
Peers within K blocks may be on a legitimate fork and are still
considered. This matches the Ouroboros Praos guarantee that honest
peers are always within K blocks of the true chain tip.

Signed-off-by: wcatz <[email protected]>
Signed-off-by: wcatz <[email protected]>
21104bf7 · fix/chainselection-skip-behind-peers · 1/34 ++ 0 --
wcatz
wcatz · · dingo
fix(mempool): early reject TXs with validity interval beyond tip slot 
When a node is behind tip, peers submit current mempool TXs that
reference UTxOs the node hasn't seen yet. The full UTxO resolution
and validation is expensive and wastes CPU on TXs the node can never
accept. This causes nodes to fall further behind instead of catching up.

Add a TipSlotFunc to MempoolConfig that returns the current tip slot.
Before performing full validation, check if the TX's ValidityIntervalStart
exceeds the local tip slot and reject immediately after CBOR decode.

Signed-off-by: wcatz <[email protected]>
Signed-off-by: wcatz <[email protected]>
01dce49a · fix/mempool-validity-interval-reject · 2/18 ++ 0 --
dependabot[bot]
dependabot[bot] · · dingo
build(deps): bump github.com/go-jose/go-jose/v4 from 4.1.3 to 4.1.4 
Bumps [github.com/go-jose/go-jose/v4](https://github.com/go-jose/go-jose) from 4.1.3 to 4.1.4.
- [Release notes](https://github.com/go-jose/go-jose/releases)
- [Commits](https://github.com/go-jose/go-jose/compare/v4.1.3...v4.1.4)

---
updated-dependencies:
- dependency-name: github.com/go-jose/go-jose/v4
  dependency-version: 4.1.4
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>
6f5354da · dependabot/go_modules/github.com/go-jose/go-jose/v4-4.1.4 · 2/3 ++ 5 --
Showing 25 of 178 recent commits. Check out Blink Labs on GitHub to see more.